Finding the Fourth Proportional to 11,359.88, 17,039.94 and 3,964.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,359.88 : 17,039.94 = 3,964.34 : x
2. Step 2: Convert to fraction form
   11,359.88/17,039.94 = 3,964.34/x
3. Step 3: Cross multiply
   11,359.88x = 17,039.94 × 3,964.34
4. Step 4: Simplify right side
   11,359.88x = 67,552,115.74
5. Step 5: Solve for x
   x = 67,552,115.74/11,359.88
6. Step 6: Final answer
   x = 5,946.55